Surface water intake facility for rural potable water

Abstract

This utility model relates to the field of drinking water treatment technology, specifically providing a surface water intake facility for rural drinking water, which at least solves one of the problems of poor sediment treatment and easy clogging in existing water intake facilities. The surface water intake facility includes a pool body and a partition. The partition has an "I"-shaped structure and divides the internal space of the pool body into three independent water inlet, transition, and outlet areas. The transition area is located between the water inlet and outlet areas. This utility model has the advantages of good water quality, strong self-cleaning ability, low risk of clogging, and guaranteed water intake effect.

Description

Technical Field

[0001] This utility model relates to the field of drinking water treatment technology, specifically providing a surface water intake facility for rural drinking water. Background Technology

[0002] In mountainous rural areas, natural water resources remain a crucial source of water supply. Although rural water supply capacity has improved significantly in recent years, problems such as insufficient centralized water supply coverage and inadequate water intake facilities persist due to economic constraints and the natural environment. Traditional mountain water intake facilities often employ low dams, which present the following main problems: 1. Ineffective sediment treatment: The water intake facilities lack effective interception and sediment-blocking structures. During the rainy season, when the sediment content of the spring water surges, sediment, dead branches, fallen leaves, and other impurities easily enter the pipes with the water flow. At the same time, existing facilities generally lack automated sludge removal systems, and sediment deposition can easily lead to blockage of the raw water pipe network, affecting the stable operation of subsequent water purification processes. 2. Construction conditions are easily limited: Water sources in mountainous areas are mostly located in narrow valleys, and on-site dam construction requires a large amount of earthwork, resulting in high construction intensity and narrow working areas. In addition, the complex terrain and poor transportation in mountainous areas make it difficult for large construction machinery to reach the site, and it is difficult to transport construction personnel and materials, leading to low project implementation efficiency and high costs. 3. Inconvenient Operation and Maintenance: Mountainous water sources are mostly located in remote, deep mountain areas with inconvenient transportation and a lack of regular inspection routes. Routine maintenance requires several hours of manual walking, and equipment repair response times can take several days, resulting in the inability to promptly resolve facility malfunctions. Water intake facilities that lack professional maintenance for a long time are prone to structural damage, leakage, and other problems, ultimately threatening the safety and reliability of the entire water supply system. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems, namely, to solve at least one of the problems of poor sediment treatment effect of existing water intake facilities, easy blockage of water intake facilities, easy limitation of construction conditions, and inconvenience of operation and maintenance.

[0004] In a first aspect, the present invention provides a surface water intake facility for rural drinking water, the surface water intake facility including a pool body and a partition, the partition having an I-shaped structure and using the partition to divide the internal space of the pool body into an inlet area, a transition area and an outlet area that are spatially independent of each other, the transition area being located between the inlet area and the outlet area.

[0005] In some feasible embodiments of the above-mentioned surface water intake facilities for rural drinking water, the separator includes a first separator and a second separator connected to each other; the first separator is a curved plate-shaped structure and protrudes towards the water inlet area; the second separator is a curved plate-shaped structure and protrudes towards the transition area.

[0006] In some feasible embodiments of the above-mentioned surface water intake facilities for rural drinking water, the first partition is provided with a first grid connecting the water inlet area and the transition area, the second partition is provided with a second grid connecting the transition area and the water outlet area, and the aperture of the filter holes of the second grid is smaller than the aperture of the filter holes of the first grid; the water inlet area is provided with a water inlet communicating with the outside and a first sludge discharge pipe, the transition area is provided with a second sludge discharge pipe communicating with the outside, and the water outlet area is provided with a water outlet pipe communicating with the outside.

[0007] In some feasible embodiments of the above-mentioned surface water intake facilities for rural drinking water, the pool body includes a bottom plate, a baffle, a first side plate, and a second side plate. The baffle, the first side plate, and the second side plate are all disposed on the bottom plate and are respectively sealed to the bottom plate. The first side plate and the second side plate are disposed opposite to each other. The baffle is disposed on the same side of the first side plate and the second side plate and is respectively connected to the first side plate and the second side plate. The water inlet is disposed on the side of the pool body opposite to the baffle.

[0008] In some feasible embodiments of the above-mentioned surface water intake facilities for rural drinking water, the first end of the first partition is connected to the baffle, the second end of the first partition is connected to the second side plate, the first end of the second partition is connected to the baffle, and the second end of the second partition is connected to the first partition; the water inlet area is formed between the first side plate, the first partition, and the baffle, the transition area is formed between the first partition, the second partition, and the baffle, and the water outlet area is formed between the first partition, the second partition, and the second side plate.

[0009] In some feasible embodiments of the above-mentioned surface water intake facilities for rural drinking water, the pool body is assembled from the bottom plate, the baffle, the first side plate, the second side plate, the first partition and the second partition.

[0010] In some feasible embodiments of the above-described surface water intake facility for rural drinking water, the distance between the first side plate and the second side plate gradually decreases from the water inlet to the baffle.

[0011] In some feasible embodiments of the above-mentioned surface water intake facilities for rural drinking water, the inlet end of the first sludge discharge pipe is located at the bottom of the pool, the inlet end of the second sludge discharge pipe is located at the bottom of the pool, and the inlet end of the outlet pipe is located in the upper middle part of the pool.

[0012] In some feasible embodiments of the above-mentioned surface water intake facilities for rural drinking water, the surface water intake facilities further include a water intake head limiting structure, which is disposed on both sides of the pool body.

[0013] In some feasible embodiments of the surface water intake facility for rural drinking water described above, the surface water intake facility further includes a monitoring device, an energy storage device, and a controller, wherein the monitoring device and the energy storage device are respectively connected to the controller.

[0014] The beneficial effects of this utility model are: (1) By setting up U-shaped partitions with a certain curvature in the water intake pool, the pool is scientifically divided into three functional zones: the inlet zone, the transition zone, and the outlet zone. The streamlined zone design effectively avoids abrupt changes in the direction of water flow, keeping the water flow smooth and continuous. At the same time, the U-shaped partitions can generate directional flow guidance and flushing effects, playing a self-cleaning role. This helps guide the water flow to dynamically clean the surface of the grid, reducing the deposition of impurities on the grid and effectively preventing grid blockage. This design not only reduces the risk of failure of the water intake facility due to siltation and reduces the frequency and cost of manual cleaning and maintenance, but also improves the overall operational stability and reliability of the water supply system through stable water flow conditions and a continuous self-cleaning mechanism. (2) This utility model divides the pool into an inlet zone, a transition zone, and an outlet zone, and sets up two-stage screens at the connection between the three zones. The first screen with a relatively large aperture is set between the inlet zone and the transition zone to preferentially intercept large particles such as leaves in the water, reducing the load on subsequent treatment. The second screen with a smaller aperture is set between the transition zone and the outlet zone to further filter fine suspended solids such as silt, effectively improving the quality of the effluent. By adopting this gradient design of "coarse filtration + fine filtration", the service life of the screens is extended, the problem of easy clogging of single-stage filtration is effectively avoided, and the burden on downstream water purification facilities is also reduced. (3) The first row of mud pipes can discharge the mud and suspended matter that settles after the first screen intercepts large particles of impurities in the inlet area, thus preventing large particles of impurities from clogging the first screen or accumulating and affecting the inlet efficiency; at the same time, the second row of mud pipes discharges the fine particles of mud and suspended matter that settles after the second screen intercepts small particles of impurities in the transition area, thus preventing small particles of impurities from clogging the second screen or affecting the water flow into the outlet area, thereby ensuring the filtration effect of the two-stage screens, maintaining the smooth flow of water from the inlet area to the outlet area and the stability of the outlet water quality. Attached Figure Description

[0015] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1A top view of a surface water intake facility for rural drinking water provided in an embodiment of this utility model; Figure 2 for Figure 1 Cross-sectional view along the AA direction; Figure 3 for Figure 1 Cross-sectional view along the BB direction; Figure 4 A top view of another surface water intake facility for rural drinking water provided in an embodiment of this utility model; Figure 5 A schematic diagram of the outflow direction of surface water intake facilities for rural drinking water provided in this embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Water inlet area; 11. Water inlet; 12. First sludge discharge pipe; 121. First sludge discharge valve; 13. First suspended solids sensor; 2. Transition area; 21. Second sludge discharge pipe; 211. Second sludge discharge valve; 22. Second suspended solids sensor; 3. Water outlet area; 31. Water outlet pipe; 311. Water outlet valve; 32. Inspection door; 4. Base plate; 41. Fixing component; 5. Baffle; 6. First side plate; 7. Second side plate; 8. Separator; 81. First partition; 811. First grille; 82. Second partition; 821. Second grille; 91. Monitoring device; 92. Energy storage device; 10. Water intake head limiting structure. Detailed Implementation

[0017] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. To better illustrate the present invention, numerous specific details are provided in the following detailed description. Those skilled in the art should understand that the present invention can be implemented even without certain specific details.

[0018] In the description of this utility model, terms such as "upper," "lower," "inner," "outer," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the actual direction or positional relationships in practical application. These terms are used merely for ease of description and do not indicate or imply that the device to be protected must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, ordinal numbers such as "first" and "second" are used only for convenience of explanation and are not used to indicate or imply relative importance.

[0019] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Please see Figures 1 to 5 This utility model embodiment provides a surface water intake facility for rural drinking water. The surface water intake facility includes a pool body and a partition 8. The partition 8 has an in-shape structure and uses the partition 8 to divide the internal space of the pool body into an inlet area 1, a transition area 2 and an outlet area 3, which are spatially independent of each other. The transition area 2 is located between the inlet area 1 and the outlet area 3.

[0021] Among them, the U-shaped separator 8 is a two-piece structure, specifically composed of a first separator 81 and a second separator 82 assembled using a two-piece assembly process. For example... Figure 1 As shown, the outlines of the first partition 81 and the second partition 82 are both continuous and uninterrupted, with no inflection points. That is, the partition 8 adopts a hyperbolic structure in the shape of an "I". When the partition 8 includes the first partition 81 and the second partition 82 that are connected to each other, the first partition 81 and the second partition 82 are respectively constructed in a curved shape. The first partition 81 and the second partition 82 are monotonically curved and the curvature facing the water inlet direction is positive.

[0022] Further, please refer to Figure 1 The first partition 81 is a curved plate-like structure, protruding towards the inlet zone 1, i.e., the first partition 81 protrudes in the direction of water inflow. The curved plate-like structure forms a large-area guiding surface through its arc contour. When receiving raw water in the inlet zone 1, it transforms the straight water flow into a directional flow along a curved trajectory, effectively reducing local turbulence, short-circuiting, and dead zones. This design allows the water flow to diffuse evenly within the inlet zone 1, appropriately extending the hydraulic residence time, promoting the sedimentation of large suspended particles (such as silt and leaves) in the inlet zone 1, reducing the treatment load on the subsequent transition zone 2 and outlet zone 3, improving the overall treatment efficiency, and also providing a certain degree of self-cleaning for the first screen 811, which helps extend the service life of the first screen 811.

[0023] Please continue reading. Figure 1The second partition 82 is a curved plate-like structure, protruding towards the transition zone 2, that is, protruding towards the water inlet direction. After the second partition 82 is integrated with the second grid 821, the curved flow guiding surface of the second partition 82 optimizes the flow pattern and forms a vortex scouring, which not only enhances the self-cleaning ability and reduces the deposition of silt and algae on the surface of the second grid 821, but also uses the second grid 821 to finely filter and intercept small suspended solids, improving the water purification effect. At the same time, the curved structure acts as a buffer barrier to disperse the water flow impact and enhance the structural stability.

[0024] Furthermore, such as Figure 1 As shown, the first partition 81 is provided with a first grille 811 connecting the water inlet zone 1 and the transition zone 2, and the second partition 82 is provided with a second grille 821 connecting the transition zone 2 and the water outlet zone 3. The aperture of the filter holes of the second grille 821 is smaller than that of the filter holes of the first grille 811. The water inlet zone 1 is provided with a water inlet 11 connected to the outside and a first sludge discharge pipe 12. A first sludge discharge valve 121 is provided on the first sludge discharge pipe 12. The transition zone 2 is provided with a second sludge discharge pipe 21 connected to the outside. A second sludge discharge valve 211 is provided on the second sludge discharge pipe 21. The water outlet zone 3 is provided with a water outlet pipe 31 connected to the outside. A water outlet valve 311 is provided on the water outlet pipe 31.

[0025] Furthermore, the first grille 811 is detachably mounted to the first spacer 81 via bolts, and the second grille 821 is detachably mounted to the second spacer 82 via bolts. The bolted connection method supports quick assembly and disassembly, facilitating regular cleaning, replacement of faulty components, or structural adjustments, thus reducing maintenance costs and time. The detachable design also enhances equipment adaptability, allowing for flexible replacement of grille specifications to suit different usage scenarios or needs, preventing the entire structure from becoming unusable. Moreover, this design simplifies the installation process, reduces reliance on specialized tools, improves operational safety, and helps reduce installation costs.

[0026] The pool body, as the core container of the surface water intake facility, is used to undertake functions such as raw water acquisition, preliminary purification, and water volume regulation. Its interior is scientifically divided using U-shaped partitions 8, forming a sequentially connected inlet zone 1 (raw water receiving and primary filtration, wherein...). Figure 1 The system consists of three main functional areas: the inlet zone 1 (direction V), the transition zone 2 (secondary filtration and separation treatment), and the outlet zone 3 (output of filtered water). These areas form a continuous "receive-process-output" process, which effectively ensures the safety and stability of water intake and provides excellent preconditions for the efficient operation of subsequent treatment units (such as downstream water purification facilities).

[0027] Among them, the first screen 811 serves as the first barrier for raw water entering the pool and mainly undertakes the function of coarse filtration. Its large pore size design can intercept large suspended solids (such as branches, plastics, silt clumps, etc.) in the raw water, preventing such impurities from directly entering the transition zone 2. Moreover, such impurities can be discharged through the first sludge discharge pipe 12, avoiding equipment blockage or a surge in processing load caused by such impurities. This allows the inlet zone 1 to undertake the functions of receiving raw water, intercepting large suspended solids, and preliminary sedimentation, thereby reducing the subsequent processing load.

[0028] The second screen 821, acting as a fine filtration barrier before the water effluent, achieves deep purification through smaller pore sizes. It can intercept tiny suspended solids (such as algae, colloidal particles, and fine silt) remaining in the transition zone 2 after secondary sedimentation and filtration. These tiny suspended solids can be discharged through the second sludge discharge pipe 21, preventing equipment blockage or a surge in processing load. This allows the transition zone 2 to serve as a core buffer zone, undertaking the task of further treatment through secondary filtration and sedimentation, ensuring effective separation of tiny suspended solids and delivering pre-purified water to the effluent zone 3.

[0029] As the final treatment unit of the water intake facility, the water outlet zone 3, through the coordinated action of the supporting water outlet pipe 31 and water outlet valve 311, plays a dual role in ensuring water quality and regulating water quantity, ensuring that the qualified water is delivered to the subsequent treatment units in a stable flow state.

[0030] For example, both the first grid 811 and the second grid 821 are stainless steel wire mesh, with the first grid 811 having a mesh size of 5 and the second grid 821 having a mesh size of 10; the first mud discharge pipe 12, the second mud discharge pipe 21, and the water outlet pipe 31 are PE pipes or welded steel pipes, and the first mud discharge valve 121, the second mud discharge valve 211, and the water outlet valve 311 are electric ball valves, with the diameter of the first mud discharge pipe 12 being larger than that of the second mud discharge pipe 21, and the diameter of the first mud discharge valve 121 being larger than that of the second mud discharge valve 211.

[0031] It should be noted that the materials and values ​​in the above examples are merely illustrative and should not be construed as limiting the scope of protection of this utility model.

[0032] In this embodiment, as Figure 1 As shown, the pool body includes a bottom plate 4, a baffle 5, a first side plate 6, and a second side plate 7. The baffle 5, the first side plate 6, and the second side plate 7 are all disposed on the bottom plate 4 and are respectively sealed to the bottom plate 4. The first side plate 6 and the second side plate 7 are disposed opposite to each other. The baffle 5 is disposed on the same side of the first side plate 6 and the second side plate 7 and is respectively connected to the first side plate 6 and the second side plate 7. The water inlet 11 is disposed on the side of the pool body opposite to the baffle 5.

[0033] The bottom plate 4 serves as the base of the pool, bearing all water pressure loads and structural weight, providing a stable supporting foundation for the overall structure. The first side plate 6 and the second side plate 7 are arranged opposite each other, forming a symmetrical force-bearing structure, effectively dispersing the lateral thrust of water pressure on the pool wall and enhancing the overall resistance to deformation. After the water enters from the inlet 11 (located on the side opposite to the baffle 5), it diffuses along the length of the first side plate 6. The baffle 5, as a key interception structure, forms an effective water flow barrier through its water-blocking design, ensuring that the raw water completes its initial acquisition in the inlet zone 1. In conjunction with the U-shaped separator 8, it can extend the residence time of the raw water in the water intake facility, which is conducive to creating stable hydraulic conditions for the subsequent staged treatment in the transition zone 2 and the outlet zone 3.

[0034] Based on the pool body including the bottom plate 4, baffle 5, first side plate 6, and second side plate 7, as follows Figure 1 As shown, the first end of the first partition 81 is connected to the baffle 5, the second end of the first partition 81 is connected to the second side plate 7, the first end of the second partition 82 is connected to the baffle 5, the second end of the second partition 82 is connected to the first partition 81, a water inlet zone 1 is formed between the first side plate 6, the first partition 81 and the baffle 5, a transition zone 2 is formed between the first partition 81, the second partition 82 and the baffle 5, and a water outlet zone 3 is formed between the first partition 81, the second partition 82 and the second side plate 7.

[0035] Specifically, the first end of the first partition 81 is connected to the middle of the baffle 5, the second end of the first partition 81 is connected to the end of the second side plate 7, the connection between the baffle 5 and the second side plate 7 is connected to the first end of the second partition 82, and the second end of the second partition 82 is connected to the middle of the first partition 81, thereby dividing the internal space of the pool into an inlet zone 1, a transition zone 2 and an outlet zone 3 that are spatially independent of each other. The transition zone 2 is located between the inlet zone 1 and the outlet zone 3.

[0036] The inlet zone 1 is partially enclosed by the first side plate 6, the first partition 81, and the baffle 5, forming a semi-open space. Utilizing the flow-guiding effect of the first side plate 6 along its length and the water-blocking effect of the baffle 5, along with the coarse filtration of the first grid 811 to intercept large suspended particles, it achieves raw water reception and sedimentation of large suspended particles, forming a stable raw water acquisition unit. The transition zone 2 is partially enclosed by the first partition 81, the second partition 82, and the remaining portion of the baffle 5, forming a flow channel turning structure. This appropriately extends the hydraulic residence time, allowing for secondary fine filtration of the second grid 821 to intercept small suspended particles. It also serves as an intermediate buffer zone to balance the inlet turbulence and outlet flow stability requirements. The outlet zone 3 is partially enclosed by the first partition 81, the second partition 82, and the second side plate 7, forming a safe and stable outlet unit at the end of the water intake process. This effectively regulates water output to prevent downstream equipment overload, ensuring the stability and reliability of the facility's operation.

[0037] In one implementation, such as Figure 1 As shown, an openable and closable inspection door 32 is provided between the second end of the first partition 81 and the end of the second side plate 7. When it is necessary to clean the interior of the water outlet area 3 (such as the water outlet pipe 31 located in the middle) through the inspection door 32, the water inlet of the water outlet area 3 can be reduced by opening the first mud discharge valve 121 or the second mud discharge valve 211 and using the first mud discharge pipe 12 or the second mud discharge pipe 21. Then, the inspection door 32 can be opened for cleaning and maintenance, which not only ensures the sealing of daily operation, but also facilitates maintenance and meets the maintenance needs of long-term operation.

[0038] In another implementation, such as Figure 4 As shown, the second end of the first partition 81 is directly fixed to the end of the second side plate 7 by a rigid connection, for example, by seamless welding to achieve a seal, which enhances the anti-leakage performance and structural integrity of the pool, and ensures that the water quality of the outlet zone 3 remains stable and the system is safe during continuous operation.

[0039] Furthermore, the pool body is assembled from a bottom plate 4, a baffle 5, a first side plate 6, a second side plate 7, a first partition 81, and a second partition 82. The bottom plate 4, baffle 5, first side plate 6, second side plate 7, first partition 81, and second partition 82 are made of stainless steel. These components are assembled on-site by welding. This stainless steel assembled pool body utilizes modular prefabrication in the factory and on-site welding assembly. This facilitates the establishment of a unified operational standard system for pool body assembly, systematically promoting the implementation of standardized operating procedures. By standardizing operational details, reducing repetitive communication costs, and mitigating the risk of human error, construction efficiency is effectively improved. This effectively overcomes the pain points of traditional concrete / rubble dam construction in remote mountainous areas, such as large material handling volumes, complex on-site operations, and long construction periods. Standardized factory production also ensures structural precision and material corrosion resistance, improving the corrosion resistance and service life of the water intake facilities. On-site work only requires foundation layer pouring and pool body fixing, significantly shortening the construction cycle, reducing labor costs, and ensuring long-term stable operation and water quality safety of the pool body in complex mountain spring water environments.

[0040] Furthermore, both the first side plate 6 and the second side plate 7 are curved plate structures, and the distance between them gradually decreases from the inlet 11 to the baffle 5, meaning the convex surfaces of the first side plate 6 and the second side plate 7 face inwards. This design facilitates smooth fluid redirection and directional convergence, optimizes flow guidance efficiency, and guides the water flow to dynamically clean the surface of the grille, thus achieving a self-cleaning effect. This helps reduce the deposition of impurities on the grille and effectively prevents clogging.

[0041] Furthermore, such as Figure 2 and Figure 3As shown, the inlet end of the first row of mud pipes 12 is located at the bottom of the pool, the inlet end of the second row of mud pipes 21 is located at the bottom of the pool, and the inlet end of the outlet pipe 31 is located in the upper middle part of the pool. The bottom of the pool is the area close to the bottom plate 4, and the upper middle part of the pool is the area of ​​the pool that is a certain distance above the bottom plate 4 along the height direction. The first row of mud pipes 12 and the second row of mud pipes 21 located at the bottom of the pool directly correspond to the sedimentation area at the bottom of the pool. When the first row of mud pipes 12 and the second row of mud pipes 21 are opened, large particles of impurities such as mud, sand and algae can be quickly discharged, reducing the accumulation of sediment at the bottom of the pool and maintaining the effective volume and treatment efficiency of the pool. The outlet pipe 31 located in the upper middle part of the pool can effectively avoid the sediment layer and surface scum at the bottom of the outlet area 3, and draw relatively clean middle layer water to ensure that the effluent water quality is stable and meets the standards.

[0042] In addition, such as Figure 2 As shown, the first grille 811 is disposed on top of the first partition 81. Specifically, the top edge of the first grille 811 is flush with the top edge of the first partition 81. This arrangement allows the first grille 811 to effectively avoid impurities deposited in the water inlet zone 1, reducing the risk of impurities clogging the first grille 811. Similarly, the second grille 821 is disposed on top of the second partition 82, that is, the top edge of the second grille 821 is flush with the top edge of the second partition 82. This arrangement allows the second grille 821 to effectively avoid impurities deposited in the transition zone 2, reducing the risk of impurities clogging the second grille 821.

[0043] In this embodiment, please refer to Figure 1 The inlet zone 1 is equipped with a first suspended solids sensor 13, and the transition zone 2 is equipped with a second suspended solids sensor 22. The first suspended solids sensor 13 can monitor the suspended solids concentration in the inlet zone 1 in real time. When the suspended solids concentration in the inlet zone 1 exceeds the threshold, the first sludge discharge valve 121 and the first sludge discharge pipe 12 are opened to quickly discharge large particles of impurities, preventing large particles of impurities from clogging the first screen 811 or accumulating and affecting the water intake efficiency. Similarly, the second suspended solids sensor 22 can monitor the suspended solids concentration in the transition zone 2 in real time. When the suspended solids concentration in the transition zone 2 exceeds the threshold, the second sludge discharge valve 211 and the second sludge discharge pipe 21 are opened to quickly discharge small particles of impurities, which helps to prevent small particles of impurities from clogging the second screen 821 or affecting the water flow into the outlet zone 3.

[0044] Specifically, such as Figure 1As shown, the first suspended solids sensor 13 is disposed on the side of the first side plate 6 away from the inlet 11. This design avoids direct impact from the water flow, extending the service life of the first suspended solids sensor 13. Furthermore, the first suspended solids sensor 13 is located in the main deposition area of ​​large particulate impurities in the inlet water zone 1, allowing for better detection of the suspended solids concentration in the inlet water zone 1. Similarly, the second suspended solids sensor 22 is disposed on the side of the first partition 81 away from the inlet 11. This avoids direct impact from the water flow, extending the service life of the second suspended solids sensor 22. Furthermore, the second suspended solids sensor 22 is located in the main deposition area of ​​small particulate impurities in the transition zone 2, allowing for better detection of the suspended solids concentration in the transition zone 2.

[0045] like Figure 1 As shown, the surface water intake facility also includes a monitoring device 91, an energy storage device 92, and a controller. The monitoring device 91 and the energy storage device 92 are connected to the controller. Specifically, the monitoring device 91 is a monitoring camera installed above the pool, capturing real-time images of the water intake facility's operating status (such as pool water level, equipment condition, and surrounding environment). This facilitates timely detection of anomalies such as leaks, grid blockages, and illegal intrusions, providing visual evidence for safe operation and maintenance, and supporting remote monitoring and fault early warning. The energy storage device 92 is a wind-solar hybrid energy storage device, which comprehensively utilizes renewable energy systems of wind and solar power. It integrates the complementary characteristics of wind and solar power generation, converting unstable wind and solar energy into electrical energy and storing it. This provides continuous and stable power in mountainous and watery areas without or with weak power grids, ensuring the 24 / 7 operation of monitoring, controller, valves, sensors, and other equipment, reducing dependence on traditional energy sources, and improving the system's environmental friendliness and economy. The controller is equipped with an Internet of Things (IoT) module, which serves as the central hub of the water intake facility's control system. It coordinates the operational logic of the monitoring device 91 and the energy storage device 92 (such as receiving camera data and managing energy storage charging and discharging strategies). The IoT module enables remote data transmission, equipment status monitoring, and parameter adjustment.

[0046] Please see Figure 5The surface water intake facility also includes intake head limiting structures 10, which are located on both sides of the pool. Specifically, there are two intake head limiting structures 10, which are respectively located on the opposite sides of the first side plate 6 and the second side plate 7. The four corners of the base plate 4 are equipped with fasteners 41 that can be connected to the intake head limiting structures 10 via bolts. The limiting structures on both sides physically constrain the position of the intake head within the pool, enhancing the connection strength between the intake head and the pool, reducing the risk of structural deformation and cracking due to uneven force on one side, avoiding displacement deviations caused by water flow impact, equipment vibration, or external forces, maintaining the matching of the water intake port and the pool's flow pattern, ensuring the stable operation of processes such as suspended solids interception and sedimentation in the inlet area 1, and improving water intake efficiency and water quality stability.

[0047] Based on this, the preliminary preparations for this embodiment are as follows: At the water intake point, a foundation pad and the water intake head limiting structure 10 are constructed using concrete of a certain strength grade (e.g., C30). This concrete must meet the requirements for impermeability and impact resistance to ensure foundation stability. Simultaneously, anchor bolts are pre-embedded or a dedicated space for the fixing parts 41 are reserved in the concrete structure according to the location of the water intake facility's pool body fixing parts 41. Then, the pool body of the water intake facility is rigidly connected to the water intake head limiting structure 10 using high-strength stainless steel bolts or by partially embedding it in the concrete. After the connection is completed, the gap between the pool body and the pad is sealed with sealant to form a waterproof, leak-proof, and anti-aging closed structure, which helps extend the service life of the facility. Finally, the electrical connections of all control valves, suspended solids sensors, controllers, monitoring devices 91, and energy storage devices 92 are completed.

[0048] Based on the aforementioned surface water intake facilities, this embodiment of the invention also provides a control method for surface water intake facilities used for rural drinking water, the control method comprising: S1. Obtain the first suspended solids concentration in the inlet zone 1 and the second suspended solids concentration in the transition zone 2.

[0049] When a first suspended solids sensor 13 is installed in the water inlet zone 1 and a second suspended solids sensor 22 is installed in the transition zone 2, the first suspended solids concentration in the water inlet zone 1 can be obtained through the first suspended solids sensor 13, and the second suspended solids concentration in the transition zone 2 can be obtained through the second suspended solids sensor 22.

[0050] S2. Based on the first suspended solids concentration, selectively execute the sludge removal procedure in inlet zone 1.

[0051] Specifically, step S2 includes steps S21 to S23, as follows: S21. Compare the first suspended solids concentration with the first preset concentration threshold, that is, determine whether the first suspended solids concentration is greater than or equal to the first preset concentration threshold.

[0052] The first preset concentration threshold needs to be set by comprehensively considering factors such as the turbidity limit of the inlet zone 1, the matching of the flow rate of the first sludge discharge pipe 12 with the volume of the inlet zone 1, and the seasonal fluctuation pattern of suspended solids, so as to establish a quantitative judgment standard for whether to start the sludge discharge procedure of the inlet zone 1.

[0053] S22. If the concentration of the first suspended solids is greater than or equal to the first preset concentration threshold, then the sludge discharge procedure of the inlet zone 1 is executed and continues for the first preset duration.

[0054] When the concentration of the first suspended solids is greater than or equal to the first preset concentration threshold, it indicates that the sediment accumulation in the inlet zone 1 has reached a critical state, which may lead to increased risk of blockage of the first screen 811, decreased sedimentation efficiency, and fluctuations in effluent water quality. Therefore, the sludge discharge procedure of the inlet zone 1 is executed and continues for the first preset duration. At the same time, by controlling the running duration of the sludge discharge procedure in the inlet zone 1, it is possible to ensure that most of the large particulate impurities in the inlet zone 1 are completely discharged through sufficient duration, avoiding sediment residue from affecting subsequent treatment efficiency. Furthermore, by closing the first sludge discharge valve 121 in a timely manner, the cross-waste between the clear water section and the sludge discharge process is minimized, thereby reducing water consumption while ensuring system cleanliness.

[0055] S23. If the concentration of the first suspended solids is less than the first preset concentration threshold, the water intake facility continues to perform the water discharge procedure, that is, the pool body discharges water normally through the water outlet pipe 31.

[0056] Under normal operating conditions, the outlet valve 311 remains open, while the first sludge discharge valve 121 and the second sludge discharge valve 211 remain closed. Water flows by gravity into the inlet zone 1, is filtered by the first lateral screen 811, enters the transition zone 2, is filtered by the second screen 821, and then enters the outlet zone 3. Finally, water exits through the outlet pipe 31 and is connected to the water supply facility or clear water tank for further purification. The system maintains continuous operation when the suspended solids concentration meets the standards, ensuring stable water supply and preventing water outages due to frequent sludge discharge, thus guaranteeing users' water needs.

[0057] S3. Based on the second suspended solids concentration, selectively execute the sludge removal procedure in transition zone 2.

[0058] Specifically, step S3 includes steps S31 to S33, as follows: S31. Compare the second suspended solids concentration with the second preset concentration threshold, that is, determine whether the second suspended solids concentration is greater than or equal to the second preset concentration threshold.

[0059] The second preset concentration threshold needs to be set by comprehensively considering factors such as the turbidity limit of the transition zone 2, the flow rate of the second sludge discharge pipe 21 and the volume matching of the transition zone 2, so as to establish a quantitative judgment standard for whether to start the sludge discharge procedure of the transition zone 2.

[0060] S32. If the concentration of the second suspended solids is greater than or equal to the second preset concentration threshold, then the sludge discharge procedure in the transition zone 2 is executed and continues for the second preset duration.

[0061] When the concentration of the second suspended solids is greater than or equal to the second preset concentration threshold, it indicates that the sediment in transition zone 2 has reached a critical threshold that may cause operational risks to the system. For example, it may cause a surge in the probability of clogging the second screen 821, a decrease in the sedimentation efficiency of transition zone 2, and excessive turbidity in the effluent, among other chain problems. Therefore, the sludge discharge procedure in transition zone 2 must be started immediately and maintained for the second preset duration. At the same time, by controlling the duration of the sludge discharge procedure in transition zone 2, not only can the sufficient duration ensure that small particulate impurities in transition zone 2 are fully discharged, avoiding sediment residue from affecting subsequent treatment efficiency, but the timely closure of the second sludge discharge valve 211 can also minimize the cross-waste between the clear water section and the sludge discharge process, thereby reducing water consumption while ensuring system cleanliness.

[0062] S33. If the concentration of the second suspended solids is less than the second preset concentration threshold, the water intake facility continues to perform the water discharge procedure, that is, the pool discharges water normally through the water outlet pipe 31.

[0063] The system maintains continuous operation when the suspended solids concentration meets the standard, ensuring water supply stability, avoiding water outages caused by frequent sludge discharge, and guaranteeing users' water needs.

[0064] In this embodiment, the first preset concentration threshold is greater than the second preset concentration threshold, and the first preset duration is greater than or equal to the second preset duration. As the inlet zone 1 of the water intake facility, inlet zone 1 directly contacts the raw water, exhibiting high suspended solids concentration, large particle size, and strong fluctuations. Setting a relatively high first preset concentration threshold avoids accidental sludge discharge caused by instantaneous fluctuations in the raw water turbidity. Simultaneously, the relatively long first preset duration ensures that large particles (such as silt and algae) are fully discharged, preventing problems such as blockage of the first screen 811, decreased sedimentation efficiency, and overload of subsequent treatment units. As a transition buffer zone between inlet zone 1 and outlet zone 3, the suspended solids concentration in transition zone 2 has been reduced through preliminary sedimentation, but secondary suspension of residual fine sludge is necessary. Setting a relatively low second preset concentration threshold triggers the sludge discharge procedure earlier, preventing fine sludge from entering outlet zone 3. The relatively short second preset duration ensures sludge discharge effectiveness while reducing cross-loss between the clear water section and the sludge discharge process.

[0065] It should be noted that there is no fixed order constraint for the execution of steps S2 and S3. As long as the corresponding conditions are met, the sludge discharge procedure of the inlet zone 1 can be executed alone, the sludge discharge procedure of the transition zone 2 can be executed alone, or the sludge discharge procedures of the inlet zone 1 and the transition zone 2 can be executed simultaneously.

[0066] In another embodiment for determining whether to execute a sludge removal procedure, the control method further includes: obtaining the continuous operating time of the water intake facility, comparing the continuous operating time with a preset time threshold, and selectively executing the sludge removal procedure of the water intake zone 1 and the sludge removal procedure of the transition zone 2 based on the comparison result of the continuous operating time and the preset time threshold.

[0067] Specifically, it is determined whether the continuous operation time is greater than or equal to the preset time threshold. If the continuous operation time is greater than or equal to the preset time threshold, the sludge discharge procedure of the water inlet zone 1 is executed, and the sludge discharge procedure of the transition zone 2 is executed at the same time.

[0068] The timing of starting the sludge removal procedures in the intake zone 1 and the transition zone 2 is determined by the continuous operating time of the water intake facility. That is, the sludge removal procedures in the intake zone 1 and the transition zone 2 are executed at intervals. This can promptly remove particulate impurities from the intake zone 1 and the transition zone 2, thereby effectively reducing the risk of grid blockage and ensuring smooth normal water intake operations.

[0069] Furthermore, the control methods also include: S4. Obtain the water flow rate of the outlet pipe 31, the degree of blockage of the first screen 811, and the degree of blockage of the second screen 821.

[0070] A flow meter can be installed on the outlet pipe 31 to obtain the water flow rate of the outlet pipe 31. By using the monitoring device 91 in conjunction with image recognition technology, the degree of blockage of the first grille 811 and the degree of blockage of the second grille 821 can be obtained.

[0071] S5. Based on the water flow rate of the outlet pipe 31, the degree of blockage of the first screen 811 and the degree of blockage of the second screen 821, determine whether the facility system should issue an early warning message.

[0072] Set a corresponding flow threshold for the water outlet flow rate of the outlet pipe 31 to assess whether the water outlet status is abnormal in real time; configure a corresponding blockage threshold for the blockage degree of the first screen 811 to detect whether the first screen 811 in the water inlet zone 1 is at risk of blockage; establish a blockage threshold for the blockage degree of the second screen 821 to dynamically monitor whether the second screen 821 in the transition zone 2 is at risk of blockage.

[0073] S6. If any one of the parameters—the outflow rate of the water outlet pipe 31, the degree of blockage of the first screen 811, or the degree of blockage of the second screen 821—becomes abnormal, the facility system shall issue an early warning message.

[0074] When any of the parameters—the outflow rate of the water outlet pipe 31, the degree of blockage of the first screen 811, and the degree of blockage of the second screen 821—becomes abnormal, it indicates that the facility's operating status has deviated from the normal threshold range. This may indicate potential risks such as abnormal water output, screen blockage, and system safety hazards. Therefore, the system must immediately trigger the early warning mechanism (i.e., issue an early warning message) and transmit the operating data to the management platform in real time. This allows management personnel to understand the facility's water output and screen blockage status in real time, facilitating daily management and emergency maintenance of the water supply facility during the rainy season.

[0075] It should be noted that the preset thresholds for the water flow rate of the outlet pipe 31, the clogging degree of the first screen 811, and the clogging degree of the second screen 821 can be appropriately lower than the theoretical thresholds. This strategy, by triggering the warning threshold in advance, provides staff with sufficient response time. The warning process is initiated before the facility actually reaches the theoretical risk threshold, ensuring that maintenance personnel have enough time to arrive at the mountain water intake site to carry out emergency treatment. This not only ensures the ability to detect abnormal conditions early but also avoids the risk of delays in handling due to delayed warnings, achieving closed-loop management optimization of "early warning - fast response - stable operation".

[0076] This invention scientifically divides the water intake tank into three functional zones: an inlet zone 1, a transition zone 2, and an outlet zone 3, by incorporating a curved, U-shaped divider 8 within the tank. The streamlined zoning design effectively avoids abrupt changes in water flow direction, maintaining a smooth and continuous flow. Simultaneously, the U-shaped divider 8 generates directional flow guidance and a scouring effect, achieving a self-cleaning function. This facilitates the dynamic cleaning of the grating surface by guiding the water flow, reducing impurity deposition and effectively preventing grating blockage. This design not only reduces the risk of malfunctions due to clogging in the water intake facilities and decreases the frequency and cost of manual cleaning and maintenance, but also enhances the overall operational stability and reliability of the water supply system through stable water flow conditions and a continuous self-cleaning mechanism.

[0077] Secondly, the pool is divided into an inlet zone 1, a transition zone 2, and an outlet zone 3. Two-stage screens are installed at the connection points between the three zones. The first screen 811, with relatively larger pores, is located between the inlet zone 1 and the transition zone 2, preferentially intercepting large particles such as leaves in the water, reducing the load on subsequent treatment processes. The second screen 821, with smaller pores, is located between the transition zone 2 and the outlet zone 3, further filtering fine suspended solids such as silt, effectively improving the quality of the effluent. This gradient design of "coarse filtration + fine filtration" extends the service life of the screens, effectively avoids the problem of clogging in single-stage filtration, and also helps reduce the burden on downstream water purification facilities.

[0078] Furthermore, the first row of mud pipes 12 can discharge the sediment and suspended solids that settle after the first screen 811 intercepts large particles of impurities in the inlet zone 1, preventing large particles of impurities from clogging the first screen 811 or accumulating and affecting the inlet efficiency; at the same time, the second row of mud pipes 21 discharges the fine particles of sediment and suspended solids that settle after the second screen 821 intercepts small particles of impurities in the transition zone 2, preventing small particles of impurities from clogging the second screen 821 or affecting the water flow into the outlet zone 3, thereby ensuring the filtration effect of the two-stage screens, maintaining smooth water flow from the inlet zone 1 to the outlet zone 3 and stable outlet water quality.

[0079] Furthermore, during the water intake process, the control method of this invention monitors the suspended solids concentration in the inlet zone 1 and the transition zone 2 in real time, and intelligently links the sludge discharge program to achieve automated management of "automatic sludge discharge when the concentration reaches the set value." Compared with the shortcomings of traditional manual operation of sludge discharge valves, which are prone to blockage of raw water pipes due to lack of maintenance in remote areas, this invention can effectively trigger sludge discharge without manual intervention. This avoids the risk of grid blockage and pipe siltation caused by excessive sediment deposition, ensuring the continuity of water supply. It also precisely controls the sludge discharge frequency through concentration thresholds, reducing water waste and equipment wear, thereby reducing the manual maintenance costs in remote areas such as mountainous rural areas. Ultimately, it achieves a triple improvement in the stability, safety, and economy of the water supply system.

[0080] Furthermore, this invention employs a wind-solar hybrid energy storage device, utilizing wind / solar power to supply electricity to the various valves, sensors, and controllers of the water intake facility, achieving green, low-carbon, energy-saving, and consumption-reducing effects. Additionally, through monitoring cameras and an IoT module, the operational status of the water intake facility can be transmitted to the management platform in real time, allowing managers to monitor the facility's water output and the blockage status of the grates, facilitating daily management and emergency maintenance of the water supply facility during the rainy season.

[0081] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A surface water intake facility for rural drinking water, characterized in that, The surface water intake facility includes a pool and a partition (8). The partition (8) has an in-shape structure and divides the internal space of the pool into an independent inlet area (1), a transition area (2), and an outlet area (3). The transition area (2) is located between the inlet area (1) and the outlet area (3).

2. The surface water intake facility for rural drinking water according to claim 1, characterized in that, The separator (8) includes a first separator (81) and a second separator (82) connected to each other; the first separator (81) is a curved plate structure and protrudes towards the water inlet area (1); the second separator (82) is a curved plate structure and protrudes towards the transition area (2).

3. The surface water intake facility for rural drinking water according to claim 2, characterized in that, The first partition (81) is provided with a first grid (811) connecting the water inlet area (1) and the transition area (2), and the second partition (82) is provided with a second grid (821) connecting the transition area (2) and the water outlet area (3). The aperture of the filter hole of the second grid (821) is smaller than the aperture of the filter hole of the first grid (811). The water inlet area (1) is provided with an inlet (11) communicating with the outside and a first sludge discharge pipe (12). The transition area (2) is provided with a second sludge discharge pipe (21) communicating with the outside. The water outlet area (3) is provided with a water outlet pipe (31) communicating with the outside.

4. The surface water intake facility for rural drinking water according to claim 3, characterized in that, The pool body includes a bottom plate (4), a baffle (5), a first side plate (6), and a second side plate (7). The baffle (5), the first side plate (6), and the second side plate (7) are all disposed on the bottom plate (4) and are respectively sealed to the bottom plate (4). The first side plate (6) and the second side plate (7) are disposed opposite to each other. The baffle (5) is disposed on the same side of the first side plate (6) and the second side plate (7) and is respectively connected to the first side plate (6) and the second side plate (7). The water inlet (11) is disposed on the side of the pool body opposite to the baffle (5).

5. The surface water intake facility for rural drinking water according to claim 4, characterized in that, The first end of the first partition (81) is connected to the baffle (5), the second end of the first partition (81) is connected to the second side plate (7), the first end of the second partition (82) is connected to the baffle (5), and the second end of the second partition (82) is connected to the first partition (81). The water inlet area (1) is formed between the first side plate (6), the first partition (81) and the baffle (5), the transition area (2) is formed between the first partition (81), the second partition (82) and the baffle (5), and the water outlet area (3) is formed between the first partition (81), the second partition (82) and the second side plate (7).

6. The surface water intake facility for rural drinking water according to claim 5, characterized in that, The pool body is assembled from the bottom plate (4), the baffle (5), the first side plate (6), the second side plate (7), the first partition (81), and the second partition (82).

7. The surface water intake facility for rural drinking water according to claim 5, characterized in that, The distance between the first side plate (6) and the second side plate (7) gradually decreases from the water inlet (11) to the baffle (5).

8. The surface water intake facility for rural drinking water according to claim 5, characterized in that, The inlet end of the first sludge discharge pipe (12) is located at the bottom of the pool, the inlet end of the second sludge discharge pipe (21) is located at the bottom of the pool, and the inlet end of the outlet pipe (31) is located in the upper middle part of the pool.

9. The surface water intake facility for rural drinking water according to claim 1, characterized in that, The surface water intake facility also includes a water intake head limiting structure (10), which is located on both sides of the pool.

10. The surface water intake facility for rural drinking water according to claim 1, characterized in that, The surface water intake facility also includes a monitoring device (91), an energy storage device (92), and a controller, wherein the monitoring device (91) and the energy storage device (92) are respectively connected to the controller.

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